Scientists create gentle robots from rice paper that biodegrades safely inside 32 days

Scientists on the College of Bristol have found that the frequent kitchen ingredient, utilized in Vietnamese spring rolls, is biodegradable, non-toxic and appropriate for gentle robotic prototyping, outreach and single-use purposes.

The research, revealed within the 2025 IEEE eighth Worldwide Convention on Delicate Robotics (RoboSoft), exhibits that rice paper has materials traits much like essentially the most broadly used silicone supplies in gentle robotics, opening up thrilling potentialities for researchers, educators, college students and the broader public who wish to experiment with gentle robotics utilizing sustainable and secure supplies at house.

Lead creator Christine Braganza, primarily based in Bristol’s School of Science and Engineering, defined: “Delicate robotics is a quickly rising discipline worldwide that entails the creation of extra versatile and adaptable robots utilizing gentle supplies like silicone elastomers. Nevertheless, working with silicone generates long-lasting waste and isn’t all the time environmentally pleasant.”

The researchers performed a variety of experiments to know how rice paper, which is sustainably sourced from rice (Oryza sativa L.) and cassava root (Manihot esculenta), compares to silicone. They measured its power, its softness and whether or not it safely breaks down with out harming the setting.

They discovered that it performs equally to essentially the most broadly used gentle robotic silicone materials in key mechanical properties whereas providing the additional advantage of breaking down rapidly with out the necessity for larger temperatures or humidities.

Their discovery may very well be helpful in quite a lot of methods, for culinary or agricultural purposes, creating a brand new and sustainable norm in prototyping for gentle robotics whereas additionally accelerating public engagement with gentle robotics.

The group is now seeking to construct a gentle robotic that may transfer by itself utilizing solely biodegradable supplies, for planting seeds in hard-to-reach areas. Their subsequent step is to analyze and produce a compostable gasoline system and biodegradable management mechanism, so the robots can transfer out of the laboratory into the setting.

Braganza concluded, “Our analysis opens the door for anybody to experiment, create, and innovate in gentle robotics—proper from their very own house in a sustainable approach.

“It additionally gives researchers with a recent strategy to prototyping and is promising know-how for agricultural and reforestation purposes, like reseeding in hard-to-reach areas.”